Click play for the fourth episode of No Sounds Are Forbidden. Host Matthew Friedman explores the impact of magnetic tape recording technologies on avant-garde composers, and on the birth of electronic music. This episode features an interview with composer Pauline Oliveros, music by Oliveros, Pierre Schaeffer, Halim El-Dabh, Otto Luening, Ilhan Mimaroglu, Alice Shields, Lejaren Hiller, Steve Reich, and Jacob Druckman.